TA8493AF Toshiba Semiconductor, TA8493AF Datasheet - Page 18

• Manufacturer Part Number: TA8493AF
• Description: (TA8493xx) 3-PHASE FULL WAVE BRUSHLESS DC MOTOR DRIVER IC FOR CD-ROM DRIVES
• Manufacturer: Toshiba Semiconductor

3. D D D D V
·
·
·
OFF (F)
DV
DV
V
LIM
OFF (F)
OFF (R)
L
: Switch the V
30
b
L
1
Measure the V
b
(G) L
, D D D D V
: Measure V
: Measure V
22 V
V
29
a
M1
2
OFF (R)
(G) L
1000 pF
28
L
3
c
a
CRF
, V
L
CRF
V
RF
RF
c
27
M2
4
LIM
(G) MS
from 0 V to 0.4 V.
at V
at V
at the point when output voltage level changes from low (L) to high (H)
5 V
5 V
SB
26
5
C
C
= 1.63 V/1.5 V.
= 1.67 V/1.8 V.
R
R
R
25
6
F1
F2
F1
GND1 OSC
GND2
24
TA8493F/AF/BF
7
V
18
C
23
CRF
8
RF
1.65 V
N.C. FGO BRK
V
22
9
ref
V
V
21
10
C
C
V
20
11
5 V
CC
H
19
C
12
b
d
-
H
HB
18
13
b
+
H
TA8493F/AF/BF
H
17
14
c
a
-
-
H
H
16
15
a
c
+
+
2002-01-31
2.5 V